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Motion tracker - target layer won't lineup

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Scott ThomasMotion tracker - target layer won't lineup
by on Aug 27, 2009 at 11:42:51 am

I am hoping there is a simple solution to this.

I have tracked 2 points on a TV screen that was filmed hand-held. the Tracker was set to Track motion. The resulting tracks are good and accurate.

When I apply the tracks to the layer I want to matte in, the target layer always rotates, rescales and repositions. If I select all the keyframes and nudge the rotation, scale and position parameters I can get the target layer back in alignment.

But this is a pain, so I need to know why the slide is repositioned in the first place. Is there something I can do in the positioning of the slide before applying the motion track to this layer.

Any advice or directions to advice is appreciated.


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Todd KoprivaRe: Motion tracker - target layer won't lineup
by on Aug 27, 2009 at 5:41:14 pm

Did you just choose Position when you told After Effects what kinds of keyframes to generate during tracking? See "Track or stabilize motion".

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Todd Kopriva, Adobe Systems Incorporated
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Scott ThomasRe: Motion tracker - target layer won't lineup
by on Aug 27, 2009 at 6:34:25 pm

Hi Todd. I have chosen either Position+Rotation or Position+Rotation+Scale.


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